M6X6 JISB 1111 Class 4.8 Metric Phillips Truss Machine Screw Full Thread Zinc (Pack Qty 4,000) BC-MJ66MPT

The truss head machine screw is a preferred design in applications where minimal clearance exists above the head Class 4.8 machine screws shall be made from a carbon steel, partially or fully annealed as required, which conforms to the following chemical composition-- Carbon: 0.55% maximum; Phosphorus: 0.05% maximum; Sulfur: 0.06% maximum.